For example: Ju-52 and glider (2 pilots) can bring 2xtroops to target but they have to gain altitude. 2xC47´s can do the same, but they can approach under darbar level. Even if radar was down, due to icon range gliders can be seen too far.
Maybe if gliders icon range was shorter, like gv´s? JU-52 towing glider up enough, release it and dives down and continues NOE as backup troops or supplies. It will give little more changes to glider to survive by avoiding enemy fighters. Of course it works only if radar was down.
Just thinking...